rails--rails/actioncable/CHANGELOG.md

• Protect against concurrent writes to a websocket connection from multiple threads; the underlying OS write is not always threadsafe.

  Tinco Andringa

• Add ActiveSupport::Notifications hook to Broadcaster#broadcast

  Matthew Wear

• Close hijacked socket when connection is shut down.

  Fixes #25613.

  Tinco Andringa

Please check 5-0-stable for previous changes.